Multiple-wire paper machine



Sept. 3, 1929. P. ERKENs 1,727,162

MULTIPLE WIRE PAPER MACHINE Filed Jan. 23, 1925 17m/enfer:

fa JMJ/55M Patented Sept. 3, 1929.

UNITED STATES-PATENTfoFFlcE. ,y

PAUL Enxnns, or DUREN, GERMANY.

MULTIPLE-WIRE PAPER MACH'INE.

Application filed January 23, 1925, Serial No. 4,250, and in GermanyNovember 21, 1924.

My invention relates tol multiple wire paper machines.

It is an object of my invention to provide a paper making machine inwhich a plurality of units, each provided wlth a Fourdrmier Wire, thatis,a wire cloth for formlng a paper web, are combined with a main wirewhich may also carry a web. The web or webs from' the several units aredeposited 1n succession on the main wire or on the web carried thereon,so 'that at the end of the machine a combined web is formed, the numberof webs therein being equal to the number of units plus the webvonthe'maln wire, if there is any. The several units cooperating with them'ain wire are inde ndent from one another and the webs leaving saldunits are subiected to the action of s uctlon boxes arranged below thefront rolls of each unit. f

Preferably all the units and the main wlre are subjected to shakingmotlon in the same direction and in parallel and the compensatinglshaking motion is imparted to the wire only at the rear of the lastunit. r As the units are arranged above the main wire, there is nodanger o f the. web b ecoming detached from the ,mam wire as 1s the casein the existing machines where the web adheres to the lower face of thewire.

In the drawings aiixed to this specification and forming part thereof, amachlne em- .bodying matica ly by way of example.

In-the drawings,

Fig. 1 is a partly sectional elevation, Fig. 2 is a plan view of mymachine, and Fig. 3 is an end elevation viewed from the left in Fig.,1.y Referring now to the drawing, A 1s the front main frame stay of themachine which resembles a at the left o the frame A and supprtlnmechanism for actuatingm machine, as Wi 1 be described below. 11 is t etable of a size carriage, not shown, 10 is a front cylinder arranged infront of the portal A, a. rear cylinder beingl provided at the rear endof the machine, which .isnot shown, 13, 13 and 0 14, 14 are supportingand guiding rollers for the upper and lower reaches of the mainFourdrihier wire 1, 15, 15 are the bars of a shaking frame, 18, 18 arestationary bars to which the bars of the shaking frame are my inventionis illustrated diagramportal, B is a 'frame arranged -V 'pivoted at 19,19, and 12, 12-are clamping cylinders arranged in suitable bearings 12at the end of the shaking fram'e just before thepivots 19, 19.

2, 3 and 4 are separate units carried inA 'suitable frames 17 Whicha'rebuilt up on the. frames 15. Each unit comprlsesa front cylinder 5 theshaft 16 of which is carried 1n .slotted bearings of the frame 17, arear cylinder 6, a wire 7 running on said cylinders, and a suction box 8at the rear of the cylinder 5. lEach unit is supplied with'paper pulpfrom a suitable hopper, not shown, and a web is formed on each unit, andcombined with a web on the main wire^"1. The direction in which the webson the several units and the web on the main wire 1 are moving, isindicated by the arrows in Fig. 1.

Suction boxes 9, 9 are arranged below the main wire 1 at the pointswhere each unit -delivers its web to the main wire 1.

20 is a driving shaft extending along the shaking frame 15, 15, 21 areeccentrics or cams on` the shaft 20, 22 are rods taken from theeccentrics to one'of the bars 15, 23 and 24 are conical pulleys in theframe B, the

25 is a belt connecting the two pulleys. Ro-

i pulley. 24 being secured on the shaft 20, and

tation is imparted to the -pulle 23 by suitable means, not shown, and te belt 25 is shifted on its pulleys 23, 24 by other suitable means, notshown.

By the means described which are below the units 2, 3, 4 are the frames15, 15 shaken` 1n the same direction as' the units.

By depositing the webs from the several unlts on the wire or on the Webswhich are already on the sieve, paper or card board consistin of aplurality of webs is obtained, the webs eing connected with each otherby action of the4 suction boxes.

triplex paper for paper bags the first unit 2 will deliver to the mainwire 1 a web of high-class pulp of any desired color, for in stancewhite. This Web is subjected to thc action of the first suction box 9and fed to the unit 3 by the Wire 1 which deposits thereon a web oflow-grade pulp. Both' webs are firmly connected by the action of thesecond suction box 9 and fed to the last unit 4 which deposits on thetwo webs a web of high quality pulp which ma be blue. This web is alsofirmly connecte with the If it be desired for Y instance to make Y,

provided, for instance, the first units 2- may be dispensed with andreplaced by the size carriage and the table-11.

. which are fed by the main wire 1.

- belt conveyor.

In the same manner thick card board can be made on the machine With acorresponding number ofunits, each of which delivers a web tothe mainwire 1 or the web or webs Card board of any desired thickness can bemanufactured in this manner as there is no danger of the web becomingdetached from vthe main wire which at the same time actsv as a the lowersurface of the main wire, as in the machine heretofore used, the dangerof the Where the web adheres to.

web becoming detached, obviously increases in proportion .to itsthickness.

I wish it vto be understood that I do not desire to be limited to theexact details of construction shown and described, for obviousmodifications will occur to a person skilled in the art.

A multiple wire paper machine compris- ,ing a principal Fourdrnierwireand a plurality ofmachine units each comprising a subsidiary wireand adapted to prepare a web ofv pulp which is delivered to saidFourdrinier wire, said units being adapted lto be shaken in unison andin parallel with each other and with that reachv or the Fourdrinier wirewith which they are cooperating.,

lIn testlmony whereof I aliix my signature.

PAUL ERKENIS.

